Ribose is the initial substrate for the synthesis of AMP and GMP (purine nucleotides and the precursors of ATP and GTP respectively). The following diagram is a simplified overview of this overall metabolic pathway. The numbers refer to enzymatically-catalyzed steps in the pathway. a) Which enzyme is most likely to […]

While studying the Michaelis – Menton kinetics of enzymes in the TCA cycle, the synthetic hydrocarbon malonate was shown to act as a competitive inhibitor of one of the enzymes. At first, the identity of the inhibited enzyme was unknown but further tests revealed that this inhibited TCA enzyme was […]

1. A couple who are both carriers of the gene for cystic fibrosis (CF) have two children who have cystic fibrosis. What is the probability that their next child will have cystic fibrosis? What is the probability that their next child will be a carrier of cystic fibrosis? 2. Black […]

Q1. What basic similarities among mammals and differences between mammals (the in-group) and reptiles (an out-group) help support the hypothesis that all mammals share a common ancestor? Q2. Barry Snowden, owner of Barry’s Snowboards, would like to develop a page that would explain a list of snowboard types along with […]